tree 310743a5759d7cddb8da28177bbda2a67ee21746
parent 7ca98bfba8139c17f2e453aa1a033e8ed7074391
author Hans Boehm <hboehm@google.com> 1544768871 -0800
committer Hans Boehm <hboehm@google.com> 1544768871 -0800

Declare mmapped_bytes only if needed

Also needed to unbreak the Mac build.

Test: TreeHugger
Bug: 111447610
Change-Id: If78f1905519521ad9ba78e913c67917d388301a2